maintenance
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maintenance
The entirety of measures for preserving the functional condition of technical systems, buildings, or facilities. Includes servicing, inspection, and repair.
Die Instandhaltung der historischen Gebäude in der Altstadt ist sehr kostspielig.
The maintenance of the historic buildings in the old town is very costly.
The word is derived from the verb phrase 'in Stand halten' (to maintain / keep in good condition). It therefore describes the action of keeping something 'in einem guten Stand' (in good condition). The linking element '-s-' in 'Instandhaltung' (maintenance) is no longer present.
Es ist wichtig, das Auto regelmäßig in Stand zu halten.
It is important to maintain the car regularly.
'Instandhaltung' (maintenance) is often used with the preposition 'von' (of) to name the object. Common objects are buildings, machines, facilities, or infrastructure. A typical verb used with it is 'durchführen' (to carry out).
Die Firma ist für die Instandhaltung der Heizungsanlagen zuständig.
The company is responsible for the maintenance of the heating systems.
This word belongs to technical and administrative language. It is often found in technical documentation, contracts, or official notices.
Die Kosten für die Instandhaltung des Schlosses sind enorm.
The costs for the maintenance of the castle are enormous.
conversation / entertainment / maintenance
Both words can refer to measures for maintaining a facility or building. „Instandhaltung“ is the established general technical term, while „Unterhaltung“ in this sense is used mainly in formal and administrative language. In a technical context, „Instandhaltung“ is therefore usually the more appropriate choice.
Die Instandhaltung der öffentlichen Brücke umfasst regelmäßige Reparaturen und Kontrollen.
Maintenance of the public bridge includes regular repairs and inspections.
Die Unterhaltung der öffentlichen Brücke wird im Verwaltungsbericht geregelt.
The upkeep of the public bridge is addressed in the administrative report.
